Reland of [stubs] KeyedStoreGeneric: inline dictionary property stores

test/mjsunit/store-dictionary.js

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+// Flags: --allow-natives-syntax
+
 // Test dictionary store ICs.
 
 // Function that stores property 'x' on an object.
 function store(obj) { obj.x = 42; }
 
 // Create object and force it to dictionary mode by deleting property.
 var o = { x: 32, y: 33 };
 delete o.y;
 
 // Make the store ic in the 'store' function go into dictionary store
@@ skipping 17 matching lines @@
 // Smi.
 store(1);
 // Fast case object.
 o = new Object();
 store(o);
 assertEquals(42, o.x);
 // Slow case object without x property.
 delete o.x;
 store(o);
 assertEquals(42, o.x);
+
+(function() {
+  var o = {};
+  for (var i = 0; i < 100; i++) {
+    var k = "key" + i;
+    o[k] = "foo";
+    delete o[k];
+  }
+})();
+
+(function() {
+  function f(a, i, v) {
+    a[i] = v;
+  }
+
+  f("make it generic", 0, 0);
+
+  var o = {};
+  for (var i = 0; i < 100; i++) {
+    var k = %InternalizeString("key" + i);
+    f(o, k, "foo");
+    delete o[k];
+  }
+})();